EntityQ4553007· pop 5· linked from 117 articlesDearborn ObservatorySign in to saveastronomical observatory in Evanston, IllinoisConnectionsNorthwestern UniversityEntityNorthwestern Memorial HospitalEntityChicagoEntityMississippiEntitygeographic coordinate systemEntityAmerican Civil WarConceptInternational Standard Book NumberEntityHarvard UniversityEntityWayback MachineEntitySiriusEntityCambridgeEntitylimestoneEntityColumbia UniversityEntityastronomerEntityUniversity of ChicagoEntityOrion NebulaEntityobservatoryEntityEvanstonEntityWall Street crash of 1929EntitybibcodeEntityCategories1889 establishments in IllinoisAstronomical observatories in IllinoisBuildings and structures completed in 1889Northwestern University buildings and structures